Blister machine



FIG. 1 is a left front perspective view of a blister machine according to a first embodiment of the new design;

FIG. 2 is a right front perspective view thereof;

FIG. 3 is front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a left side view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is bottom view thereof. 

CLAIM The ornamental design for a blister machine, as shown and described. 